Tagged Questions

What does it mean when threads are time-sliced? Does that mean they work as interrupts, don't exit while routine is not finished? Or it executes one instruction from one thread then one instruction ...

If I run mysqld from the command line, it displays some startup messages, and then stops responding. It doesn't produce output, and ignores any input, and there seems to be no way to get rid of it. ...

On a CentOS 6 system with 32 cores, what could make all processes run under core 0 only?
This is a system running nothing but a few stunnel processes actively. This is not a system we would set IRQ ...

Are the system calls like fork(), exit() saved in some kind of function pointer table , just like the Interrupt Descriptor Table ? where does my OS go when I call my fork() or exit() ?
I guess this ...

Who raises this softirq? Is it raised on every time tick( based on timer interrupt?)
Does this make the kernel to shedule a runnable process? If yes, how does the handlers of lower priority softirqs ...

While I know that lot of packet processing(CRC calculations, packet segmentation handling, etc) can be offloaded to NIC, then does each packet still cause an interrupt to CPU? Is there a difference if ...

I'm using Arch Linux. Before Arch, I was using Kubuntu. I have a Intel i7 processor with 7200 RPM hard drive. When I'm installing software (not from package managers, but a big proprietary one such as ...

I have windows 7 running as a Guest in Virtualbox on my machine with ArchLinux as a Host. I want to redirect all the traffic from my Guest through Tor.
For that I want to use a "Anonymizing Middlebox" ...

I have an m1.small EC2 instance that is mostly just running Apache as a web server for several simple PHP web sites (that use RDS as a database). The server is constantly with a very high load average ...

If we add a device that does not support PNP (Plug-an Play), the manufacturer will hopefully provide explicit directions on how to assign IRQ values for it.
However, if we don't know what IRQ value ...

How can I generate a signal interrupt on a file descriptor in Linux?
Motivation is to generate a interrupt in userland as we have in microcontrollers. I'll have file descriptor for I/O, and want to ...

Whenever I print the value of /proc/interrupts the value of rtc0 in IRQ8 which is for RTC shows only 1 interrupt on CPU0. I have read that when booting the value of the xtime variable is stored from ...

When a timer interrupt occurred the ISR is called to service the interrupt.
Is it okay to assume that every timer interrupt ends with a call to the scheduler on which process should continue running ...

Ubuntu 12.10 alpha 2 works perfectly on my new 11" 2012 Macbook Air, but only when I boot with the "nointremap" option. Supposedly this is not good to use as a permanent solution. What exactly does ...

I have looked for answers and so far have found nothing to answer my question. I am currently logging in to my Ubuntu server and upon running a process I can not run any of the interrupts on it. Here ...

I am not sure if I understand the concept of hardware and software interrupts.
If I understand correctly, the purpose of a hardware interrupt is to get some attention of the CPU, part of implementing ...

I am reading the Wikipedia article for process management. My focus is on Linux. I cannot figure out the relation and differences between system call, message passing and interrupt, in their concepts ...

Looking at the contents of /proc/interrupts on an x86 Linux, I see that some of the interrupts are IO-APIC-edge while others are IO-APIC-level.
I wonder what determines the interrupt type, is it the ...